Kenwood-RXD655-cs-sm 维修电路原理图.pdf

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1、70%MINI HiFi COMPONENT SYSTEMRXD-655/655-GR/655-H/655E/655E-GR 2001-6 PRINTED IN KOREAB51-5737-00 (K/K) 2308Panel assy *(A60-)Knob(VOLUME) (K27-2470-08)Dress ring (A21-3957-08)In compliance with Federal Regulations, following are repro-duction of labels on, or inside the product relating to laser pr

2、od-uct safety.KENWOOD-Crop. certifies this equipment conforms to DHHSRegulations No.21 CFR 1040. 10, Chapter 1, subchapter J.DANGER : Laser radiation when open and interlock defeated. AVOID DIRECT EXPOSURE TO BEAM.* Refer to parts list on page 33. Panel(CD) (A60-2090-08)Front glass *(B10-)RXD-655E-H

3、/655L/655M/655M-HRXD-755/755E/755L/755MSERVICE MANUAL(XD-655855)*Refer to page 2 if you want to know system configuration.RadioFans.CN 收音机爱 好者资料库AM Loop Antenna(1)(T90-0879-08)“AA” size battery (UM/SUM-3,R6, HP-7 or similar)(2)Remote Control(1)(A70-1531-08): MXM3M5(A70-1537-08): ETE2FM Antenna(1)(T9

4、0-0883-08)Use to adapt the plug on thepower cord to the shape of thewall outlet.(Accessory only for regions whereuse is necessary.)AC Plug Adaptor (1)(E03-0115-05)RXD-655/7552CONTENTS / ACCESSORIESCONTENTS / ACCESSORIES . 2EXTERNAL VIEW.3DISASSEMBLY FOR REPAIR.4BLOCK DIAGRAM .9CIRCUIT DESCRIPTION.10

5、ADJUSTMENT.15PC BOARD . 16SCHEMATIC DIAGRAM . 23EXPLODED VIEW .31PARTS LIST.33SPECIFICATIONS .Back coverContentsAccessoriesCLASS 1LASER PRODUCTThe marking this product has beenclassified as Class 1. It means that thereis no danger of hazardous radiatiooutside the product.SYSTEMMAIN UNITDESTINATIONSP

6、EAKERXD-655RXD-655ETLS-N50SXD-655ERXD-655EE2 LS-N50SXD-655-GRRXD-655-GRET LS-N50S-GRXD-655E-GRRXD-655E-GRE2 LS-N50S-GRXD-655-HRXD-655-HELS-N50S-HXD-655E-HRXD-655E-HE2LS-N50S-HXD-655-HRXD-655M-HMLS-N50S-HXD-655RXD-655MMXLS-N50SXD-655(M3)RXD-655L(M3)M3LS-N50S(M3)XD-655(M5)RXD-655L(M5)M5LS-N50S(M3)XD-7

7、55RXD-755ETLS-N70SXD-755ERXD-755EE2 LS-N70SXD-755RXD-755MMXLS-N70SXD-755(M3)RXD-755L(M3)M3LS-N70S(M3)XD-755(M5)RXD-755L(M5)M5LS-N70S(M3)XD-855RXD-755ETLS-N90SXD-855ERXD-755EE2 LS-N90SXD-855RXD-755MMXLS-N90SXD-855(M3)RXD-755L(M3)M3LS-N90S(M3)XD-855(M5)RXD-755L(M5)M5LS-N90S(M3)SYSTEM CONFIGURATIONCAUT

8、IONSRadioFans.CN 收音机爱 好者资料库RXD-655/7553EXTERNAL VIEWANTENNAAM LOOPFM75 VIDEO/AUX+-LRRLSPEAKERSPin jack (E63-1219-08)Pin jack(AM)(E40-8933-08)Cabinet(TOP) (A02-3014-08)Lock terminal board(E70-0144-08)AC power cord bushing (J42-0338-08)AC power cord *(E30-)FM Antenna(E70-0145-08)* Refer to parts list

9、on page 33 . RXD-655/7554DISASSEMBLY FOR REPAIRCaution on DisassemblyFollow the below-mentioned notes when disassemblingthe unit and reassembling it, to keep it safe and ensureexcellent performance:1. Take cassette tape and compact disc out of the unit.2. Be sure to remove the power supply plug from

10、 the walloutlet before starting to disassemble the unit.3. Take off nylon bands or wire holders where they need beremoved when disassembling the unit. After servicingthe unit, be sure to rearrange the leads where they werebefore disassembling.4. Take suffcient care on static electricity of integrate

11、dcircuits and other circuits when servicing.Figure 7-2Figure 7-31Top Cabinet1. Screw . (A1) x47-12Side Panel1. Screw . (B1) x87-1(Left/right)3CD Player Unit/1. Turn on the power supply,7-2CD Tray Cover open the disc tray, take out the CD cover, and close. (Note 1)2. Screw . (C1) x13. Hook. (C2) x34.

12、 Hook. (C3) x25. Socket . (C4) x24Rear Panel1. Screw . (D1) x97-25Main PWB1. Screw . (E1) x17-22. Socket . (E2) x38-23. Flat Cable . (E3) x14. Tip Wire. (E4) x16Power Supply PWB1. Screw . (F1) x28-22. Socket . (F2) x13. Flat Wire. (F3) x18-37Front Panel1. Screw . (G1) x38-28Display PWB1. Screw .(H1)

13、 x98-32. Socket . (H2) x19Tape Mechanism1. Open the cassette holder.8-32. Screw. (J1) x510Headphones PWB1. Screw . (K1) x18-311Turntable1. Hook. (L1) x28-42. Cover . (L2) x112Disc Tray1. Turn fully the lock lever in the7-3arrow direction.2.While holding the lock lever,rotate8-1the cam gear until the

14、 cam gearrib engages with the clamp lever.3. Push the slide holder backward to8-5engage the claw with the grooveand remove it in the directionof the arrow. .(M1) x613CD Servo PWB1. Screw . (N1) x18-6(Note 2)2. Hook. (N2) x23. Socket . (N3) x414CD Mechanism1. Hook. (P1) x29-12. Hook. (P2) x315Loading

15、 Motor PWB1. Hook. (Q1) x59-1STEPREMOVALPROCEDUREFIGUREFigure 7-1(B1)x43x10mm(B1)x23x10mmRearPanel(B1)x23x10mmSide Panel(Right)Side Panel(Left)(A1)x23x12mm(A1)x23x12mmTop Cabinet(E1)x13x10mm(C3)x1(D1)x23x10mm(C1)x13x10mm(D1)x73x10mmCD PlayerUnitDC Tray CoverRearPanelPull(C3) x1(C4)x2(C2) x3112Main P

16、WBCD ServoPWBNote 1:How to open the changer manually. (Fig. 7-3)1. In this state, turn fully the lock lever in the arrow directionthrough the hole on the loading chassis bottom.2. While holding the lock lever, rotate the cam gear anticlockwiseuntil the cam gear rib engages with the clamp lever. (Fig

17、. 8-1)3. After that, push forward the CD slide holder.Note 2:1. After removing the connector for the optical pickup from theconnector, wrap the conductive aluminium foil around thefront end of the connector so as to protect the optical pickupfrom electrostatic damage.Note 3:1. Be careful not to brea

18、k the claw of the CD mechanism.2. When fining back the cam gear assembly, let it lock by frontmovement.LOCK LEVERRXD-655/7555DISASSEMBLY FOR REPAIRFigure 8-1Figure 8-2Figure 8-3Figure 8-4Figure 8-5Figure 8-6CLAMP LEVERCAM GEAR RIB(F1)x13x6mm(G1)x33x10mm(F1)x13x10mm(F2)x1(E3)x1(E4)x1(E2)x2Main PWB(E2

19、)x1PowerSupplyPWBPowerSupplyPWB(H1)x93x10mm(H2)x1(J1)x53x10mm(K1)x13x10mm(F3)x1Display PWBHeadphonesPWBOpenCassetteHolderTapeMechanismTurntableDisc Tray(L2) x1CD Player Unit(L1) x2132(M1) x3(M1) x3(N3) x2(N2) x2(N3) x2CD ServoPWBCD PlayerBase(N1)x13x8mmRXD-655/7556DISASSEMBLY FOR REPAIRFigure 9-1(P2

20、) x3(P1) x1(Q1) x5(P1) x1LoadingMotorPWBCDMechanismREMOVING AND REINSTALLING THE MAIN PARTSTAPE MECHANISM SECTIONPerform steps 1 to 7 and 9 of the disassembly method toremove the tape mechanism.How to remove the record/playback and eraseheads (TAPE 2) (See Fig. 10-1)1. When you remove the screw (A1)

21、 x 2 pcs., the recording/playback head and three-dimensional head of the erasinghead can be removesd.How to remove the playback head (TAPE 1)(See Fig. 10-2)1. When you remove the screw (B1) x 2 pcs., the playbackhead.How to remove the pinch roller (TAPE 1/2)(See Fig. 10-3)1. Carefully push the insid

22、e claw to remove it. The pinch rollerpawl in the direction of the arrow , and remove the pinchroller (C1) upwards.Note:When installing the pinch roller, pay attention to the springmounting position.How to remove the belt (TAPE 1) (See Fig. 10-4)1. Remove the main belt (D1) x 1 pc., from the motor si

23、de.2. Remove the FF/REW belt (D2) x 1 pc.Figure 10-1Figure 10-2Figure 10-3(A1)x22x9mmTAPE2Record/PlaybackHeadErase Head(B1)x22x9mmTAPE1PlaybackHeadPinch Roller(C1)x1STEP1STEP2RXD-655/7557DISASSEMBLY FOR REPAIRHow to remove the pickup (See Fig. 11-2)1. Remove the stop washer (B1) x 1 pc., to remove t

24、he gear(B2).2. Remove the screws (B3) x 2 pcs., to remove the shaft (B4).3. Remove the pickup.Figure 11-2CD MECHANISM SECTIONPerform steps 1, 2, 3, 11 and 14 of the disassembly methodto remove the CD mechanism.How to remove the loading motor(See Fig. 11-1)1. Bend the hooks (A1) x 5 pcs., to remove t

25、he loading motor.Figure 11-1NoteAfter removing the connector for the optical pickup from theconnector wrap the conductive aluminium foil around the frontend of connector so as to protect the optical pickup fromelectrostatic damage.(A1)x2(A1)x1Loading MoterCD Base(A1)x2(B3) x2 2.6 x6mmShaft(B4) x1Sto

26、p Washer(B1) x1Gear(B2) x1CD MechanismPickupHow to remove the belt (TAPE 2) (See Fig. 10-4)1. Remove the main belt (E1) x 1 pc., from the motor side.2. Remove the FF/REW belt (E2) x 1 pc.How to remove the motor (See Fig. 10-5)1. Remove the screws (F1) x 2 pcs., to remove the motor.Figure 10-4Figure

27、10-5TAPE2TAPE1Main Belt(D1)x1TAPE2Main Belt(E1)x1TAPE1Main BeltFF/REWBelt(E2)x1FF/REWBelt(D2)x1MotorMotor(F1) x22.6x5mmMotorRXD-655/75582672T.F4815322232114412951716OUTINGNDVCCMPX INAM OSC INAM OSC OUTAM RF IN534212011522166OSC1329107161513121411RLRLRLRL173+B4FMOSCAM INFM INFM OSCFM+B214RL818AUXTAPE

28、CDTUNERLR23+B4RL242346916T1/T2REC1345718VCC1+B3+B32314122120P.BH/N1781519NOR/ HIGHT1/T2+B4LRLR10L NFR NFALCREFR RECR NFL RECPOP REDUCER(T2)L NFR(T1)L(T2)L(T1)+B4+B4REC7418-B2+B45VH+VH-VL-VL+1418RL678,910,111-B1+B1L-OUTR-OUTSP.DET.12-1425-3615-244-111,238,391067-912215658595755544950484746434267-7879

29、80-8990-9293-10052535145444140383936372533-3134351116131217-20+B7+B7+B7+B7+B7VDDVLOADRESETVDO222324CECLDODIVDDAVDD+B6BIAST1/T2REC123+B7+B3+B6-+R-CHL-CH+B2-B2+B3M10V+B4A10VVF2+B463Hz307-B241810Hz1K2928-VFVF1+B6+5V+B5CD+BC801+B7T1/T2P.BRECP.B45VTFM IF INREG3+B48192018FM/AMOUT15LR12111012 IF IN136SD101

30、3FM MONO/ST117STEREOMONO/STIF OUT24INOUTAFCAM RF IN+B417FM+B46CEDICLDO16248371514131110963-66MPX INVSSAVDDAMPX INRDS-IDRDCLRDDARSTXINVDDDVSSDXOUTAM RFP-INPOWER AMP.IC901TERMINALAM LOOP ANTFM FRONT ENDFE301CF301FM IFFM IFCOVERAGETRACKINGAMAM BANDT303T306T351IC303FM/AM IF MPX.LA1832SX351456kHzPLL(TUNE

31、R)LC72131IC3024.5MHzX352Q360CNS11from CD SECTIONCNP1LC75341IC601AUDIOJK601VIDEO/MIC101Q703Q704Q70554PINIC700IC70056PIN53PINIC70055PINIC700MOTORDRIVERTAPE MECHANISMASSEMBLYSOLM1,SOLM2SOLENOIDMM1MOTORTAPESWM2T2 PLAYR.PLAYSWM4SWM1T1 PLAYSWM3F.PLAYAN7345K/PLAYBACK AMP.PLAYBACKRchLchRchLchTAPE 1TAPE2PB H

32、EADREC/PB HEADSWITCHINGQ103-106SWITCHING108AC BIASQ111Q109Q126Q110SWITCHINGQ121,122MUTINGSWITCHINGERASEHEADQ128,L104BIAS OSCSWITCHINGQ124BIASAM IF863IC860KIA4558POPE AMP.-20dBATTSYSTEMMUTE604606Q864,865Q901-FL701DISPLAYIC700(1/2)SYSTEMUPD780206708Q706-MICROCOMPUTERQ700RESETXL7014.1943MHzVR701JOGRX70

33、1SENSORREMOTEKEY0-2to CDSECTIONJK670HEADPHONESMM901FAN MOTORQ907DRIVERQ905RL901SO901TERMINALSPEAKERD809T801TRANSFORMERF804T5AL 250VF805T5AL 250VD810D811-814Q803Q850F806CONSTANTVOLTAGET2AL 250VKIA7810APREGULATORVOLTAGEQ851VOLTAGECONSTANTZD851T2AL 250VF807KIA4558MICROCOMPUTERIC700(2/2)OPEAMP.562SYSTEM

34、UPD780206ZD801REGULATORKIA7805PVOLTAGEQ852Q802Q801D804D803T2.5AL250VF801D801CONSTANTREGULATORVOLTAGED802-805T802SUB POWERTRANSFORMERRL801AC POWERSUPPLY CORDAC 230V 50HzUNSWITCH 5VVOLTAGEMAIN POWERAUX INAND RECORDQ107,PROCESSORQ603,Q862,Q605,IC561,904ANTENNASO301AQ301AMPFM IFCF303FM IFCF351L.P.FL351Q

35、T21AMPL341BALUNREGULATORLC72723ICT214.332MHzXT21RDS DECODERRXD-755/655BLOCK DIAGRAMBLOCK DIAGRAMFOCUS COILTRACKING COILFD0TD0SLDOSPDO20222126XOUTWRQDORESDICECONT5193728505675RFVDDVVDDVDDADAVDDFIN1RVDDLVDDXVDDFIN2LDSLDDTIN2TIN1CLKXIN234051555769494866656463616257281874641478010799842434544257071LCHOL

36、VSSRCHORVSSCONT2CONT3CONT4+3.3V+3.3V45761823244082VCC1VCC2VCC4VCC3122517393842418-142229-351516272621+5V123456AGNDR-CHDGNDL-CH+5V+5VDO465DICLK321CEWRQDRF897OC. DISC NOCLAMP SWCD RES456123162345146532+5VPICK UP UNITIC1LC78645ECONTROLSERVO/SIGNALXL133.8688MHzQ2CONSTANTVOLTAGEQ1LASERDRIVERIC2M63001FPDR

37、IVERFOCUS/TRACKING/SPIN/SLEDMMM1MOTORSPINDLEMOTORSLEDM2PICKUP INQ3CNP7toSECTIONMAINSECTIONCNP8DISPLAYtoCNP4CNS4MSW1OPEN/CLOSESW2CLAMPDISCSW3NUMBERLOADINGRXD-755/655RXD-655/7559Port No.Port NameI/OFunction1VDD-POWER SUPPLY(+5V)2-20dB ATTO-20dB ATTENUATION3NO USE/DSA STB-GND4T BIASODECK BIAS CONTROL5T

38、 T1/T2ODECK T1/T2 CHANGE OVER6REC/PLAYODECK RECORDING/PLAYBACK CHANGE OVER7RES OUTOCD DSP REQUEST8DRFICDRF LEVEL DETECTION9WRQICD DSP WRITE REQUEST10REQUESTIRESET SIGNAL INPUT11X2OMAIN CLOCK OUTPUT12X1IMAIN CLOCK INPUT13VPP/IC-GND14XT2-OPEN15SPN-OPEN16VDD-POWER SUPPLY(+5V)17CD CLKOCD DSP CLOCK 18CD

39、DIOCD DSP COMMAND19CD DOICD DSP CODE Q INPUT20CD CEOCD DSP CE OUTPUT21CEOCHIP ENABLE OUTPUT22CLKOCLOCK OUTPUT23DIODATA OUTPUT24DOIDATA INPUT25AVSS-GND26O/C SW/DSA DATAICD OPEN CLOSE SWITCH INPUT27NO USE/DSA ACK/TUN SMITUNER SIGNAL METER INPUT28SPEANA 2ISPEANA DATA INPUT(16kHz)29SPEANA 1ISPEANA DATA

40、INPUT(1kHz)30SPEANA 0ISPEANA DATA INPUT(63kHz)3133KEY2KEY0IKEY INPUT34AVDD-ANALOG POWER SUPPLY35AVREF-ANALOG REFERENCE VOLTAGE36P INIPOWER FAILURE DETECTION37,38JOG1,0IJOG VOLUME INPUT 1, 039REMOCONIREMOTE CONTROL SIGNAL INPUT40VSS-GND41SMUTEOSYSTEM MUTE CONTROL42T SOL BODECK2 SOLENOID CONTROL43T SO

41、L AODECK1 SOLENOID CONTROL44T MOTORODECK MOTOR CONTROL45TIMER LEDOTIMER LED CONTROL46VDD-POWER SUPPLY(+5V)47AC RLY CONT.OAC RELAY CONTROL48SP RLYOSPEAKER OUTPUT RELAY CONTROL49SP DETISPEAKER OUTPUT DETECTION50T1 RUNIDECK1 REEL SENSOR DETECTION PORT51T2 RUNIDECK2 REEL SENSOR DETECTION PORT52CD CLAMP

42、SWICD CHANGER CLAMP SWITCH INPUT53PLAY SW AIDECK PLAY SWITCH A INPUT54PLAY SW BIDECK PLAY SWITCH B INPUT55FPAIDECK FORWARD RECORDING SWITCH INPUT1. Port Description of MicroprocessorRXD-655/75510CIRCUIT DESCRIPTIONRXD-655/75511CIRCUIT DESCRIPTIONPort No.Port NameI/OFunction56FPBIDECK REVERSE RECORDI

43、NG SWITCH INPUT57MIC IN-OPEN58MP3 LED-OPEN59DESTOUTODISCRIMINATION PORT FOR DESTINATION60STANDBY LEDOSTANDBY LED CONTROL61KARAOKE LATCH-OPEN62NO USE/MPEG POW-CONNECTED TO GROUND63RDS RSTORDS RAM RESET64RDS RDDAIRDS TRANSMIT DATA INPUT65RDS RDCLORDS CLOCK66RDS READYIREADY DATA INPUT6770P22P19OFL DISP

44、LAY CONTROL PORTDEST3DEST0IDESTINATION INPUT PORT7178P18P11OFL DISPLAY CONTROL PORT79VLOAD-FL DRIVER POWER SUPPLY(-30V)8089P10P1OFL DISPLAY SEGMENT CONTROL PORT90100G11G1OFL DISPLAY GRID CONTROL PORTPort No.Port NameI/OFunction1TOICH2 inverted input.2FDICH1 inverted input.3NCOUnused.4FO+OCH1inverted

45、 output.5FO-OCH1 non-inverted output.6TR+OCH2 inverted output.7TR-OCH2 non-inverted output.814GND-GND15SL-OCH3 non-inverted output.16SL+OCH3 inverted output.17SLDOICH3 inverted input.18VCC-Power supply 1 (CH1, CH2, CH3).19STANDBYISTANDBY signal input.20VREF-CH1CH4 reference voltage input.21MUTEIMute

46、 signal input (CH6).22GND-GND23VCC-Connected to power supply.24VCC2-Power supply 2 (CH4).25SPDICH4 inverted input.26SP+OCH4 inverted output.27SP-OCH4 non-inverted output.28VCC3-Power supply 3 (CH5).2935GND-GND36,37NCOUnused.38M-OCH6 non-inverted output.39M+OCH6 inverted output.40VCC4-Power supply 4

47、(CH6).41LDM-ICH6 inverted input.42LDM+ICH6 non-inverted input.2. Pin Description of IC2-1 Focus/Tracking/Spin/Sled Driver : M63001FP (CD Section IC2)RXD-655/75512CIRCUIT DESCRIPTIONPort No.Port NameI/OFunction1VREFOReference voltage output.2MPXINIBaseband (multiplexed) signal input.3VDDA-Analog powe

48、r supply (+5V).4VSSA-Analog ground.5FLOUTOSubcarrier output (filter output).6CINISubcarrier input (comparator input).7TESTITest input.8XOUTOCrystal oscillator output (4.332MHz).9XINICrystal oscillator input (4.332MHz).10VSSD-Digital ground.11VDDD-Digital power supply (+5V).12MODEIRead mode setting (

49、0 : master, 1 : slave).13RSTIRDS-ID/RAM reset (positive polarity).14RDDAORDS data output.15RDCLI/ORDS clock output (master mode)/RDS clock input (slave mode).16RDS-ID/READYORDS-ID/READY output (negative polarity).2-2 RDS Demodulation LSI(TUNER Section, ICT21)3. Test Mode3-1 How to Set up the Test Mo

50、de During POWER OFF mode, push below each 2 keys and POWER key.Then go to each TEST MODE.3-2 Cancelling the Test Mode Turn the power off.KEYSTEST MODE POWER SOUND + CD CD TEST MODE POWER SOUND + STOP ALL CLEAR (RESET) POWER TUN DOWN + TUNER PRODUCTION INITIALIZE FORCHANGER POWER REC + CD CD CHANGER